EP 0042377 B1 19861105 - METHOD AND APPARATUS FOR PRODUCING OPTICAL DISPLAYS
Title (en)
METHOD AND APPARATUS FOR PRODUCING OPTICAL DISPLAYS
Publication
Application
Priority
US 7901153 W 19791226
Abstract (en)
[origin: WO8101935A1] Method and apparatus for creating optical displays from a real optical scene with an optical feedback circuit projecting a parameter of the original scene (18) for combination with the original scene itself or an image thereof. The feedback circuit may influence the parimetric image in many ways to influence the combined optical display. For instance, the parametric image may be a negative of the real scene to produce a null combined display showing motion where the parametric image is time delayed or the parametric image may be defocused to produce a combined display with edge enhancement. The feedback circuit may project a vertical parametric image to create fixed relation combined displays or the feedback circuit can project real parametric images continuously to create a combined display which changes progressively as a function of the relation between original and parametric images. The method and apparatus may be used for a variety of purposes such as motion detection in security devices or live sperm counting or real image enhancement in biological microscopy.
IPC 1-7
IPC 8 full level
G02B 27/02 (2006.01); G01R 13/00 (2006.01); G02B 27/10 (2006.01); G02B 27/14 (2006.01)
CPC (source: EP)
G01R 13/00 (2013.01); G02B 27/1066 (2013.01); G02B 27/145 (2013.01)
Designated contracting state (EPC)
CH FR SE
DOCDB simple family (publication)
WO 8101935 A1 19810709; DE 2953927 C2 19910131; EP 0042377 A1 19811230; EP 0042377 A4 19840619; EP 0042377 B1 19861105; GB 2079096 A 19820113; GB 2079096 B 19840815; JP S56501858 A 19811217
DOCDB simple family (application)
US 7901153 W 19791226; DE 2953927 T 19791226; EP 80900452 A 19791226; GB 8125428 A 19791226; JP 50056080 A 19791226